Dr. Gordon McKelvie explains the importance of adding modernized dates to the earlier CIPM volumes, and explores the research possibilities offered by the original dates found in the documents themselves.

The 1420 assignment of dower to Margaret, widow of Thomas de Bromley, esquire, has been calendared in CIPM xxi, as document 173, but with a number of gaps. The head and foot of the original inquisition are damaged and parts of the rest were too faded to read. However the faded sections can mostly be made out with effort, especially with the aid of an ultra-violet lamp, and they have been added to the updated calendar text below, which is now complete save for the introduction and a part of the final section lost from the original. Additionally, a mistranslation of the name of an uncommon landholding unit, the wara terre, has been corrected.